Abstract
SummaryThe foliage of seven different genera of conifers including 10 species and 17 different cultivars was tested for its susceptibility against two isolates of Phytophthora lateralis from two different lineages. Detached green shoot tips were floated in zoospore suspension and the lesion size was assessed after 7 days. xCupressocyparis leylandii, Juniperus media and Cedrus deodara were the most resistant hosts, whereas Chamaecyparis obtusa was most susceptible. Thuja plicata and Thuja occidentalis, Chamaecyparis pisifera and Chamaecyparis lawsoniana, Taxus baccata and Cupressus macrocarpa were of medium susceptibility. For comparison, a small subset of four hosts was also tested for stem susceptibility. The stems of whole potted plants were inoculated with the same two isolates as used for the leaf susceptibility tests. Chamaecyparis lawsoniana was highly susceptible, whereas the stems of xC. leylandii, T. baccata and T. plicata were not susceptible. Most conifers were similarly affected by both tested lineages of P. lateralis although the isolate of the Pacific Northwest lineage caused slightly longer lesions on C. lawsoniana in the stem inoculation tests.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
